baber/WOPTO huggingface dataset:
Patent DE-2037789-A1 (DE)
Title: Anti corrosion cpds for oil wells
IPC: C07D233/16
Filed: 1970-07-30
Abstract: Oil-sol., brine-dispersible corrosion inhibiting composition comprises 15-35% of the amide condensation product of a polymeric acid and 1-aminoalkyl-2-alkyl-2-imidazoline (II) 0.5-1.5% of a dispersing agent of formula R"OW, and (III), 63.5-84.5% of a mutual aromatic solvent for oil and (I) and (II). (R is a tall oil C17-32 fatty acid residue. A is the 2-valent radical, C2H4 or C3H6, R' is a C15-70 hydrocarbon moiety of a polymeric acid, being a dimer- or trimer-fatty acid or higher mol. wt polymerized carboxylic acid, n is 2-4, R" is a straight chain C12-20 hydrocarbon radical and W is a poly oxy-ethylene chain contg 10-30 oxyethylene groups.) Inhibiting corrosion of metals found in contact with petroliferous well fluids, in the production of natural gas or in oil refineries. A corrosion inhibiting composition contains 20% N-imidazolinyl-polymeric acid amide, 1% Brij 35 (RTM, Atlas Powder Co.) and 79% light gas oil aromatic solvent.
Patent DE-2062724-A1 (DE)
Title: Activated sludge plant - with device for use in conditions of excessive effluent feed
IPC: C02F3/12
Filed: 1970-12-19
Abstract: In the activated sludge effluent treatment plant disclosed in DT 1813635 which comprises a circular section tanks divided by a partition into a central aeration chamber having a high output centrifugal aerator with riser pipe extending to just above the tank bottom and fitted with horizontal radially extending pipes ending at adjustable heights in an annular after-clarifier of triangular longitudinal section surrounding the aeration chamber, together with a sludge collector outside the circular tank connected to the aeration chamber by one pipe and to the riser pipe of the centrifuge by a second pipe which is bent upwards in the sludge collection zone and has a height-adjustable overflow device in the region of the water surface, - the improvement whereby the after-clarifier is constructed with two launders connected together by a siphon pipe, the inner and outer launders being fixed to the partition and tank walls respectively, while on the effluent feed side a flow-dividing construction is provided connected by one pipe to the aeration chamber and by a second pipe to the inner launder with a flow-meter incorporated in the feed pipe and operating a shut-off valve in the siphon pipe in accordance with the feed rate.
Patent DE-2063234-A1 (DE)
Title: Underwater power and drive unit - with pressure compensating system
IPC: E21B33/035
Filed: 1970-12-22
Abstract: Power or drive unit for use in deep water comprising (a) a housing for the unit enclosing the power components and filled with a non-compressible fluid (b) a fluid separating and pressure-compensating device connected to the housing, contg. a flexible diaphgram element exposed to the pressure of the surrounding water, and subjected to a counter pressure by the fluid in the housing, (c) means for exerting a force, esp. a spring, on the compensating and fluid separating device, in such a way that this brings the fluid in the housing under pressure to a value which is higher than that of the surrounding water.
Patent DE-2105168-A1 (DE)
Title: Polypropylene/polyamide/polyamide laminate - having high stiffness, low permeability to oxygen and high permeability to water-
IPC: B29C48/21
Filed: 1971-02-04
Abstract: Three-layer sandwich structure comprises (1) an outer layer of polypropylene (PP) 0.02 - 1.2 mm. thick, (2) an inner layer of a 30 - 70/70 - 30 wt.% mixt. of PP/polyamide (PA) 0.01 - 0.7 mm. thick, (3) outer layer of PA 0.01 - 1.1 mm. thick; the total thickness of the laminate does not exceed 1.5 mm. The PP is a mixt. of (a) 70 - 80 p.b.w. of a PP of which 1 wt.% is sol. in boiling toluene (wt. ratio PP : toluene = 5 : 95) and (b) 20 - 30 p.b.w. of a PP of which more than 99 wt.% are sol. in boiling toluene. Both PPs have approx. the same intr. visc. and mol. wt. distribn. and the abs. values of their respective viscosities are 1 - 10 dl/g measured in decalin at 130 degrees C. The PA is a polycaprolactam, rel. visc. (DIN 53 727) = 3.15 to 4.20, m.p. 220 degrees C. Used as wrapping foil esp. for foodstuffs.
Patent DE-2111415-A1 (DE)
Title: Photocurable copying lacquer - from hydrolysed ethylene vinyl ester copolymer and org isocyanate deriv
Inventor: RESZ RAOUL DR
IPC: C08G18/81
Filed: 1971-03-10
Abstract: Photocurable high mol. copying lacquer is produced by reacting a polymer contg OH gps. with an org. deriv. of a cinnamoyl gp-contg. org. isocyanate deriv. of formula: (in which X is COR1, CON(R1)2, COOR1, R3-substd. phenyl or CN; R1 is alkyl or aryl, opt. contg. an NCO gp. R2 is H, halogen, alkyl, aryl or alkoxy; R3 is one or more H, halogen, esp. Cl, alkyl, aryl, alkoxy or NO2 or an NCO gp). The polymer contg. OH gps. is derived from 5:1 to 1:2 (molar) ethylene/vinyl ester copolymer by hydrolysing not 80, pref. is not 95% of the vinyl ester units to vinyl alcohol units. The lacquer is esp. useful for coating metal plates, rolls, foils etc. for making stencils for printing paper, textiles, metals, plastics etc. Its excellent adhesion and good acid resistance after exposure ensure clean and sharp contours.
Patent DE-2128393-A1 (DE)
Title: Carding adjustment - with single axial movement for setting of worker and stripper
IPC: D01G15/04
Filed: 1971-06-08
Abstract: By drawing a line bisecting the angle between the line joining the centres of the worker and stripper and the line between the centres of the stripper and the cylinder, movement of the stripper along the bisecting line automatically adjusts the gap between worker and stripper and the cylinder.
Patent DE-2148786-A1 (DE)
Title: Wort clarifying vat - using whirlpool principle and radial drainage trough in curved floor
Inventor: SCHULZ ADALBERT
IPC: C12C7/14
Filed: 1971-09-30
Abstract: The wort to be clarified is fed tangentially into the upper part of the vertical cylindrical vat and the main outlet for the clarified wort is in the side wall at a given height from the convex floor whose deepest point is approx. at the centre. The drainage trough for residual wort from the sediment runs from that deepest point radially outwards, at a slope of 2-5 degrees to a sump from which an outlet pipe leads, together with the upper outlet pipe, to a three-way cock leading in turn to the main oulet pipe. The trough tapers outwards in plan view from the centre of the tank floor. Trough and sump are of the same material as the floor of the vat and are esp. formed by stamping/pressing of the plating. Appts. and method are simple and cheap.
Patent DE-2166999-A1 (DE)
Title: Continuously operating microtome - cut slices are supported on a movable band which is removed when the slice is fixed
IPC: G02B21/34
Filed: 1971-08-16
Abstract: The slides cutt of the specimen are continuously carried away on a moving adhesive supporting band, which can easily be removed by solvents once the slide is fixed on the slide. Damage to the slide is avoided and the slice can be examined under the microscope without interference. A push motion places the specimen against the band, which moves with approximately the same speed as the microtome knife. An equal and opposite movement removes the cut slide, which can then be fixed to the slide.
Patent DE-2238881-A1 (DE)
Title: Flame-resistant fibres - made by melt-spinning novolak phenolic resin/polyamide mixts and formaldehyde treatment
Inventor: OKUHASHI TOMOMI
IPC: D01F6/94
Filed: 1972-08-07
Abstract: The fibres are made by melt-spinning a mixt. of 60-90 wt.% fusible and hardenable phenol novolak resin (A) and 10-40 wt.% fibre-forming polyamide (B) and the fibres obtd. are hardened and rendered infusible by treatment with formaldehyde in presence of an acid catalyst. The mixt. of (A) and (B) pref. has a P content of >=0.5 wt.% produced by reaction with a phosphate tri-ester (C) of formula : (in which R1, R2 and R3 are phenyl opt. substd. with alkyl or halogen) so that 0.8-1.5 equivs. of the ester gps. of (C) are reacted by ester exchange. Alternatively, the hardened infusible fibres are treated with a polyhalogen cpd. of P, S, B or Ti. The fibres are suitable for making flame-resistant heat-insulating clothing, covering for vehicles or aircraft, pyjamas, curtains, etc. and for heat- and chemical-resistant filter materials.
Patent DE-2241995-A1 (DE)
Title: Aminoplast solns - prepd continuously in series of reactors at controlled ph and molar ratio of formaldehyde to aminoplast precur
Inventor: BRUNNMUELLER FRITZ DR
IPC: C08G12/02
Filed: 1972-08-26
Abstract: In parent patent, aminoplast solns. for use as adhesives were prepd. continuously by condensing cpds. capable of forming aminoplants and HCHO in the presence of a catalytic mixt. consisting of ammonia or an amine, and an acid or acid salt, in homogeneous aq. soln. at boiling temp. in >=3 successive reactors. Here, the molar ratio of HCHO to aminoplast precursor in the second reactor and the following reactors is maintained at 1.6-2.6:1, the pH being 4.0-6.0, pref. 5.0-6.0. Lower residence time is needed for a given degree of condensation. Less corrosion of the metallic surfaces of the appts. is caused and the aminoplast solns. have better storage stability.
Patent DE-2243500-A1 (DE)
Title: Removing sulphur oxides from combustion gases - by scrubbing with ammon-ium ion-contg, soln, followed by desorption and thermal decomposition of regenerated soln
Inventor: FISCHER FRIEDRICH DIPL CHEM
IPC: B01D53/50
Filed: 1972-09-05
Abstract: Combustion gases or other effluent gases are scrubbed with an ammonium ion-contg. soln., which is then passed to a desorption station where SO2 is liberated for further processing and conversion to elemental sulphur. A part of the soln. regenerated in the desorption station is withdrawn from circulation and thermally decomposed to N2, water vapour and SO2. By this method, a gas mixt. with high SO2-concn. is obtained, whereby the further processing is facilitated. No undesired by-prods. are formed.
Patent DE-2260544-A1 (DE)
Title: Plate-type cross flow heat exchanger - used for cracked gas generators for I.C. engines
Inventor: MENTSCHEL HELLMUTH DIPL ING
IPC: F28F3/02
Filed: 1972-12-11
Abstract: Heat exchanger for cracked gas generators e.g. for supplying a gaseous fuel to an I.C. engine, consisting of an angular cross-flow exchanger having a series of flow chambers separated by heat exchange surfaces of small thickness, each chamber having two plane parallel, oppositely situated, warp-free sealing surfaces.
Patent DE-2323217-A1 (DE)
Title: Planar passivated PN-junctions - produced by using silicon dioxide blocks as diffusion mask
Inventor: LANGHEINRICH WERNER DIPL CHEM
IPC: H01L29/00
Filed: 1973-05-09
Abstract: Planar passivated pn-junctions are produced by diffusion of impurities in a masked semi-conductor in the following stages: 1) the p-type Si substrate is coated with Si3N4 2). Windows are produced in the latter by photolacquer techniques. 3) SiO2 layers are produced by heating in moist O2. 4) The Si3N4 layer is etched away selectively. 5) Impurities are diffused into the area between the SiO2 blocks to produce an n-type Si layer. This avoids the disadvantage of the mesa technique of exposing the pn-junction after etching so that it is not passivated where exposed to atmosphere. The junction produced is perfectly plain, without any curvature at the fringe.
Patent DE-2323426-A1 (DE)
Title: Air extn. or evacuation of cavity in pressure die casting - with automatic operation of stopper on air suction channel leading to vacuum chamber
Inventor: JAERKE PAUL
IPC: B22D17/14
Filed: 1973-05-09
Abstract: An interchangeable insert is provided in the moving half of the die, contg. a hole for extn. of air etc. with a branched hole leading to a vacuum chamber. The ext. hole terminates at the joint-line and has a conical mouth changing to a straight, short section ending in a shoulder, beyond which is a smaller hole for the stopper-rod shaft. The stopper head has a parallel section which closes the extn. hole when it mates with the straight, short section near the holemouth. Behind the head on the stopper-rod is a conical taper, and if molten metal should enter the air suction channel (which is on the fixed die-half), the cone would be forced onto the shoulder in the extn. hole, making an even better seal, i.e. the stopper works in the same direction as the flow of molten metal. A peg mounted on the stopper-rod shaft and in contact with a limit switch indicates if the stopper is open or closed, and the stopper is actuated by a hydraulic cylinder. The die-cycle is adjusted so the residual gases and/or air in the die-cavity are extracted immediately before the entry of molten metal.
Patent DE-2330410-A1 (DE)
Title: Pneumatic false twisting process - uses counter rotation in the second zone to bond loose fibre ends
Inventor: GOETZFRIED KONRAD
IPC: D01H1/115
Filed: 1973-06-15
Abstract: Designed for processing a roving of staple fibres, the matl. passes through an initial channel where the airstream spins it in one direction, and the loose fibre ends are drawn but by suction, the fibre ends being wound round the surface by the reverse rotation of the airstream in the second channel. The purpose is to use a combination of twisting directions to ensure that the outer surface of the yarn is lightly twisted in the direction of yarn travel, the outer fibres following the line of least resistance.
Patent DE-2336010-A1 (DE)
Title: Bolt gun for driving bolts into metal, and concrete - is of safety and durability and can only be fired when end is pressed against wall
Inventor: WELSCHEHOLD ARTUR
IPC: B25C1/10
Filed: 1973-07-14
Abstract: On or near the barrel of the gun is fitted a peg, and in the linkage component in which the barrel moves is a slot, the peg and slot are so arranged that the barrel can only be pushed into the ignition position for the powder charge in the hand-grip by pressing the protective cap fitted to the end of the barrel against the matl. in question when all parts of the mechanism are in a position of readiness for the ignition operation.
Patent DE-2336711-A1 (DE)
Title: Video system signal transmission - involves light sensitive elements on television screen which are controlled by image brightness variations
Inventor: MUELLER WOLFRAM
IPC: H04N7/08
Filed: 1973-07-19
Abstract: The TV screen is subdivided into signal fields at a selected part of it for transmitting a special signal with geometric or temporal coding of brightness modulation as a indicator. The light sensitive elements are formed by photocells and the transmission system is of the picture phone type. In industrial closed circuit television it can be used for space security supervision or for monitoring measuring devices, while in a television studio it may provide switching indication and programme selection display.
Patent DE-2339422-A1 (DE)
Title: Split pin extraction pliers - have finger of one jaw between fork prongs of other engaging with pin eye
Inventor: ODENTHAL SEN HANS
IPC: B25B27/08
Filed: 1973-08-03
Abstract: The two arms are made of solid forged and hardened material, integral with their respective jaws. One jaw is in the form of a two-pronged fork, the plane of the prongs lying at right angles to that in which the arms work. The other jaw is a cranked finger, pivoting between the prongs, for insertion in the split pin eye. The prongs can be straight tongues, flattened at the forward end, and of rectangular section, the width being greater than the thickness. The finger can taper steadily towards its tip, which is slightly backwards. Spreader leaf springs can be fitted between the arms.
Patent DE-2352708-A1 (DE)
Title: System for vehicle driver wiper forward view - incorporates a number of mirrors or fibre optics systems or light refracting elements
Inventor: GROSSKREUTZ ALBERT
IPC: B60R1/10
Filed: 1973-10-20
Abstract: This optical system is used for improving the field of forward vision for the motor vehicle drive which facilitates especially viewing the traffic further ahead when the traffic is moving or at standstill. This is of importance on overtaking because the driver is better able to judge the traffic conditions ahead. The viewing assembly is mounted on the driver side of the eye level. The system in its simplest form consists of a mirror at an angle to the traffic direction for forward viewing. An improved form in which the driver spends less effort on forward viewing incorporates a number of mirrors or fibre optics or light refracting or reflecting elements for producing the image of the forwards field of vision to the driver's eye.
Patent DE-2358333-A1 (DE)
Title: Universal lathe face plate - has actuating slide and rack teeth clearance adjustable
Inventor: BLUM GUENTHER
IPC: B23B29/034
Filed: 1973-11-23
Abstract: Thef acing slide is actuated by a rack and sector. The clearance between rack and sector is adjustable, as is that between the slide and its guide. The slide can work between two adjustable guide strips which are tapered in the lengthwise direction, sliding lengthwise in faces in the head, typically under the action of adjusting screws, working in tapped holes parallel to recesses for them in the strips. The latter can be held in position on the head by screws passing through elongated holes in them. The design gives long life and freedom from chattering.
Patent DE-2358366-A1 (DE)
Title: Ornamental composite surface unit - can be assembled from few different-shaped elements for wide variation possibilities
Inventor: TIMMERS GEB HARTKE THEA
IPC: B44C3/12
Filed: 1973-11-23
Abstract: Surface unit can be connected or jointed together from shaped elements of different structures; only a few different structures are required, to give wide and impressive variation. Preferably the elements are of the same or different materials, and all of the same colour, or like elements of the same colour, different from that of other structures, and opaque and/or transparent. The connectors may be of metal or non-metal, and the components of a variable surface unit are packed as a unit; and the possible variations, or part of them, are printed on the package, in which any required tools can be included.
Patent DE-2362140-A1 (DE)
Title: Rotary switch with printer cct. wafers on common spindle - has support pillars and separate fixing plate with cutouts
Inventor: MEYER HANS PETER
IPC: H02B1/04
Filed: 1973-12-14
Abstract: Rotary switch with printed circuit wafers stacked on a common spindle forming separate chambers. There are a pair of parallel rods acting as support pillars for the switch structure, which will allow axial movement of the wafer chambers as well as extensions to the number of wafers. The switch is mounted on a separate plate which also acts as a brace for the support pillars. The plate is provided with extensions which are engaged in holes in the printed circuit board to form a rigid clamp. The rods are fed through holes or cut outs in the support plate.
Patent DE-2364013-A1 (DE)
Title: Laminar central heating radiator - used as construction element and providing heat economically on walls, floors, ceilings, etc
Inventor: GABANYI PETER
IPC: F24D3/16
Filed: 1973-12-21
Abstract: Laminar central heating radiator comprises a prefabricated construction element, pref. reinforced, in which are embedded heat-releasing members such as pipes arranged on a reflector member on the reverse side of which is an insulating layer. The reflector member may be a reflective film, or a deeply embossed plate the concave areas of which receive the pipes and the concrete reinforcements. In a preferred construction two parallel pipes are used arranged in a meandering fashion in the finished assembly, flow taking place in the pipes in opposite directions. The diagonally opposing ends are received in recesses in the assembly.
Patent DE-2364487-A1 (DE)
Title: Elastic braid prodn - rubber threads led stretched through hollow spindles and overfed to wind-up
Inventor: HADLICH HELLMUTH
IPC: D04C1/12
Filed: 1973-12-24
Abstract: The rubber threads are tensioned by thread or tape brakes before passing through the hollow spindles. The wrapped and entwined braid is fed with a speed higher than the maximum amount of extension or shrinkage capacity. Between the brake devices and the entwining point there are pref. as many twisting spindles as rubber threads in the braid. Spindle revs. are pref. variable.
Patent DE-2365726-A1 (DE)
Title: Die holder mounting for revolver plate of stamping press - has die holder shoe with spring loaded retraction bolts which are mounted in revolver plate
Inventor: BREDOW WALTER
IPC: B21D28/34
Filed: 1973-07-06
Abstract: A die holder mounting for the revolver plate of a stamping press has a die holder shoe (91) to accommodate the die holder (59) let into the revolver plate (78). The die holder shoe (91) is provided with a ring groove (92), or in form die holder with two adjacent semi-circular grooves, into which two spring loaded bolts (93) make gripping contact. The spring loaded bolts (93) can be pressed back by means of a special tool (95) during construction of the dies and are used for the removal of the die form from its mounting.
Patent DE-2404025-A1 (DE)
Title: Vertical wall concreting using adjacent formwork - for moulding horizontal slabs subsequently swung into vertical position
Inventor: MAIER ROLF DIPL ING
IPC: E04G11/32
Filed: 1974-01-29
Abstract: Concrete quality may be improved and costs reduced relative to on-site methods if the wall is concreted in slab sections of the required dimensions in a similar form in which they are produced in a horizontal position. One bottom edge of each slab is directly adjacent and parallel to its final position, during the concreting process, so that when set hard the slab can be swung up into place about this edge serving as an axis. The floor of the building, suitably treated, may serve as the bottom of the form, or a prepared form panel may be laid on the floor.
Patent DE-2408680-A1 (DE)
Title: Aligning thin-walled hollow bodies prior to welding - esp. by an electron beam, using mating V-projections and V-grooves
Inventor: TRONSBERG WALTER
IPC: B23K15/04
Filed: 1974-02-22
Abstract: A means for centering hollow rotating bodies with thin walls, where the ends of the bodies must butt together for welding, esp. electron beam welding, the novelty being that the ends of the bodies or shells are provided with coaxial, mating, truncated cone surfaces. The pref. device provides a V-shaped projection in the end surface of one shell, and a matching V-groove in the end surface of the other shell. For steel shells with a wall thickness >1 mm, the included angle of the V is pref. 120 degrees and for walls 1 mm the angle is pref. max. 120 degrees. For non-ferrous metals, the included angle of the V for walls >1 mm is pref. 90-120 degrees and for walls >1 mm thick 90 degrees. Welding thin wall shells, esp. into containers, where the dia. of the shells is esp. 200-1000 mm and the ratio of wall thickness:dia. is usually 1:50. Method gives accurate alignment of the shells prior to welding.
Patent DE-2410623-A1 (DE)
Title: Door with sliding and folding panels - has trolleys which are connected by vertical shafts and gearing
IPC: E05D15/58
Filed: 1974-03-06
Abstract: The door assembly has a number of panels which are able to slide and which are folded sideways for opening purposes. These panels are supported at their lower and upper ends by trolleys which run in upper and lower guide channels. The lower channel is covered. These doors are used in public buildings and sideways stacked door panels do not obstruct traffic. The upper and lower trolleys of a given panel are connected by a vertical rod which has sprocket wheels at each end. These wheels are connected to an actuating chain. In the case of rear wheels an actuating rack is used. The trolleys are hence moved simultaneously and synchronously. These vertical rods are guided between struts connecting the trolleys which conceal the rods.